Essential oil of Cinnamomum camphora (Lauraceae) obtained from leaves by steam distillation

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 18 to 20th September 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Version / remarks:

30 May 2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Version / remarks:

dated May 2003

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

inspected on 13 and 14 October 2014 / signed on 08 April 2015

Key result

Auto-ignition temperature:

260 °C

Atm. press.:

>= 99 843 - <= 100 423 Pa

The following lowest values were recorded:

Table 4.12/1: Auto ignition temperature – results

Experiment	Value	Ignition delay	Drops used
First test series	262 °C	41 s	5
Second test series	265 °C	49 s	5
Third test series	265 °C	45 s	5

 

The lowest value of the auto ignition temperatureis 262 °C. This value was determined using 5 drops test item. The test item showed auto ignition after 41 seconds.

The auto ignition temperature (result of determination) is the lowest value fromthe lowest values of the three experiments,rounded down to a whole multiple of 5 °C. Therefore, the auto ignition temperature is stated as 260 °C (99843 -100423 Pa).

Validity

In the DIN, the following limits are applied to the range of lowest values which may be used for evaluation:

Table 4.12/2.- Acceptable ranges.

Auto ignition temp.	Range
< 300 °C	difference between three values of the main test max. 5 °C

 

The three lowest values of the main test lay within a range of 5 °C (as required for auto ignition temperatures above 300 °C). The largest difference between measured ignition temperatures was 3 °C. The acceptable range which is demanded in the DIN standard was fulfilled.

All measured values show good correlation. No observations were made which might cause doubts concerning the validity of the study outcome.

Conclusions:

This parameter/method is not relevant for classification, however the information is useful regarding potential additional fire hazard. No particular hazard is anticipated in normal conditions of storage.

Executive summary:

The study was conducted under GLP according to standard DIN 51794:2003 (listed in EU A.15 guideline).

The auto ignition temperature was determined in three independent determinations.

Under the test conditions, the lowest value of the auto ignition temperature is 262 °C between 99.843 and 100.423 kPa.

This value was determined using 5 drops of test substance. The test substance showed auto ignition after 41 seconds. Due to safety reasons and according to the guidelines the auto ignition temperature (result of determination) is the lowest value from the lowest values of the experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto-ignition temperature of the test item is stated as 260°C between 99.843 and 100.423kPa.

Description of key information

The auto-ignition temperature of the substance is stated as 260°C under the test conditions (at 99843 -100423 Pa).

No particular hazard is anticipated in normal conditions of storage.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

260 °C

Additional information

A GLP fully reliable experimental study, conducted according to a recognized EU/DIN method, is available. Therefore, it is considered as a key study. The result is retained as key data.

 

This parameter is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard.